公开(公告)号：US11759164B2

公开(公告)日：2023-09-19

申请号：US17542095

申请日：2021-12-03

Applicant: LG ELECTRONICS INC.

Inventor： Youngjun Jung ,  Seungchan Baek ,  Taehyung Kim ,  Sangjun Park ,  Mikiko Ito ,  Hyoungjoon Jo

IPC: A61B6/00 ,  G01T1/202 ,  G01T1/20 ,  G01T1/24

CPC classification number: A61B6/542 ,  A61B6/4208 ,  G01T1/2018 ,  G01T1/2023 ,  G01T1/24

Abstract: An X-ray detector integral with an automatic exposure control (AEC) device can include an X-ray detection part configured to detect X-rays irradiated from an X-ray source and generate X-ray image data; and an automatic exposure detection board located below the X-ray detection part and configured to generate an X-ray sensing signal for automatic exposure control based on residual X-rays which have passed by or through the X-ray detection part.

公开(公告)号：US12061299B2

公开(公告)日：2024-08-13

申请号：US17780760

申请日：2019-11-29

Applicant: LG ELECTRONICS INC.

Inventor： Seungchan Baek ,  Youngsoo Park

IPC: G01T1/17 ,  G01T1/02 ,  G01T1/20

CPC classification number: G01T1/17 ,  G01T1/026 ,  G01T1/20184

Abstract: A radiation detector, which can reduce power consumption of a read-out module, comprises: a radiation detection unit which includes a plurality of pixels connected to a plurality of gate lines and a plurality of data lines that intersect and arranged in a matrix form, and which store, in the plurality of pixels, charges generated in proportion to radiation dosage; a gate module for selecting at least one of the plurality of gate lines and controlling the selected gate line; the read-out module for selecting at least one of the plurality of data lines, and reading charges stored in at least one exposure detection pixel determined by the selected data line and the selected gate line; and an automatic exposure detection unit for determining whether the radiation detection unit is exposed to radiation by using a charge quantity read by the read-out module from the exposure detection pixel in every preset period.